if we had the same energy efficiency as japan, we would cut our energy use by about 20%. >> mtv's andrew jengst joins us now. why the change from last election? the percentage has gotten closer, enthusiasm is higher for romney at the moment. >> i think four years ago everyone was obviously so enthused and they hadn't seen anything like this before. when i travel on the road, it almost seems like a bit of a bad break-up. not necessarily with president obama, but government at large. i think the idea that governor romney is a businessman and can help our back pockets goes a long way. maybe that's something we are seeing on the road. >> one of the issues you and i were talking about this earlier, that the president brought up is the issue of same-sex marriage. marriage equality. i'll quote what he said. he said i have been very clear about my belief that same-sex couples have to be treated before the eyes of the law as heterosexual couples. he went on to say, what i also said historically is marriages have been defined at the state level. is this next election, when it comes to youth, are t